Pneumatic stacker.



2 SHEETS-SHEET 1 no monnn.

- /GAZ no xonm- PATENTED JUNE 21, 1904; 0. L. LARSON.

PNEUMATIC STAGKBR.

APPLICATION nnnnmun 12, .1903.

2 SHEETS-SHEET 2.

Patented June 21, 1904.

()LE L. LARSON, OF MINNEAPOLIS,- MINNESOTA, ASSIGNOR TO FOSSTON WIND STAOKER COMPANY, OF MINNEAPOLIS,

, PORATION OF MINNESOTA.

MINNESOTA, A coa- PNEUMATIC STACKER.

SPECIFICATION forming pastor Letters Application filed J 118 12, 1903.

To all whom it may concern.-

Be it known that I, OLE L. LARSON, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and Stateof Min- 5 nesota, have invented certain new and useful Improvements in Pneumatic Stackers, of which the following is a specification.

My invention relates 'to improvements in pneumatic stacke'rs, and particularly in the 1 discharge trunks or chutes thereof and the means for swinging them, its' object being-to improve and simplify the construction of joint and the mechanism for swinging the trunk.

' To this end my invention consists in the features of construction, combination, and ar Y rangement of parts hereinafter described and claimed. I

In the accompanying drawings, forming part of this specification, Figure 1 is a side. elevation of a stacker embodying my invention, showing the stacker in place upon the rear end of a threshing-machine. Fig. 2 is a top View of the discharge-trunk with the outer portion broken away. Fig. 3 is a side eleva-. 5 tion, upon an enlarged scale, of the innersec-- tions of the trunk adjacent to the dischargethroat of the fan-casing. Fig. 1 is a top view of the same, and Fig. 5 is a longitudinal vertical section taken on line as {n of Fig. 1. 39 In the accompanyingdrawings,A represents the rear end of a threshing-machine; B, the fan-casing of the stacker; C, the frame or housing therefor; D, the throatof the fan-casing, and E the discharge trunk or chute leading from the throat of the fan-casing and carrying at its outer end a hood F- The hood may be oi'any desired construction. As shown in the drawings it is made up of a rotatable section 2, which may be revolved by a cable 3, pass- 4 ing over a Windlass 4 uponthe trunk, and two overlapping pivoted sections 5 and 6, which are held normally in downwardly-deflected po sition by springs 7 and 8, respectively, .and may be raised against the tension of the springs by a cable 9, passing over the Windlass 1.

The discharge-trunk comprises a hingedinner section 10, Whichis capable of angular Patent No. 762,917, dated June 21, 1904.

Serial No. 161,150. (No model.)

movement in a vertical plane only, a swingsection'll, capable of angular movement relatively' to the inner section in a.transverse' plane only. and a hinged outer section 12, c'a-- of the fan-casing terminates in a portion ex tending within the trunk-section 10 and having side walls with upwardly-curved'end edges 16 and a flexible sheet-metal bottom wall 17 secured to the bottom of the throatat its inner end only and beingotherwise free and wall of the trunk-section .and is slidable between that andthe guide 18 upon the side wall of the trunk-section. .Thus as the trunk-secunsecured. This sheet-metal bottom 17 extends normally along'the inside of the bottom. 5

tion is swung up or down upon its hinge-rod 13 the flexible metal sheet 17 will always lie against thednner side of the bottom wall of the trunk-section, where it will not be in the way of the material discharged through the trunk.

In order to.

adjacenttelescoping ends of the inner trunksection 10 and the swing-section 11 in whatso ever direction the swing-section may be turned, one of the trunk-sections, preferably the inner section 1O, as-shown in the drawings; is provided at each side With-a curved segment 19, curved upon thearc of a circle of secure a tight joint between the whichthe pivot 20. is at the center, and the other trunk-section, preferably. the swingsection- 11, is telesc'opedover the segments 19 and the. trunk-section carrying them far enoughto reach the 'middleof the segments or, more precisely, the radii of the segments which bisect the segments and are perpendicular to the longitudinal axis of the trunksection'carrying them. The two telescoped trunk-sections are pivoted'together at top and bottom, in a line perpendicular totheir longitudinal axes by pivots 20 and 21, respectively.

As these pivots are at the center of the circle of which the curved members 19 are segments, 7 it will be evident that when the swing-sect1on and the outer trunk-sections secured thereto the end of theinner section.

' To swing the-trunk upon the joint above described, a lever 22 is' secured atone end by the rivet 23 or otherwise to the outer end of the swing-section. The lever is fulcrumed between its ends upon the pivot 20, which passes also through the strap 24 upon the end,

of the swing-section 11, as well as through the inner trunk-section 10 and the braces 25 1 secured thereo'n, the braces being turned up at the ends and carried over, the strap 24 of the swing-section, both to support the pivot 20 and to form a shoulder 26 to assist in bear- ,Iing the thrust of the outer portions of the trunk; To the inner'end of the lever 22 is 5 secured a" toothed segment 27, which is engaged bya worm 28, mounted, upon a' shaft 29, journaled in brackets30 upon the inner trunk-section and carrying at one end an opcrating-crank 31; The toothed segment 27 has radial arms 32 secured to the lever at a point 33 between the fulcrum-pivot 20 and lugs 39 and 40, through which a detachable locking-pin 41 is passed when the trunk is extended for use. When not in use, the trunk may be folded back upon the hinge-rods 13 an, 33 over the top of the stacker-frame and threshing-machine. To support the discharge-trunk and to raise "t "'n'a'vertical plane, a cable 42 is secured to e side of the threshing-machine atany convenient place and by any convenient means, 'such'as the hook-43, then passed over a pul- :ley 44, secured to the trunk near its outer end, '55 and thencecarried back and passed over a pul ley 45 upon theopposite side of the machine, and finally passed over a Windlass e6, secured to the stacker-frame at a convenient place near the bottom thereof. a Having now described my invention, whatI claim as new, and desire to secure by Letters Patent, is

1. A discharge-trunk for pneumatic stackers comprising two telescoping sections con- 5 nected by a transverse pivot so as to be capatelescoped over said segments, for the purpose described.

ble of swinging laterally-thereon, one of the sections having at each side an outwardlycurved segment, and the other section being 2. A discharge-trunk for pneumaticstackers comprising two telescoping iii'llllk;90tlOI1S pivoted together in a .lme perpend cular to their longitudinal axes so. as to be capable of swinging laterally upon such pivot, one of the sections having at each side an outwardlycurved segment and the other'section being telescoped over said segments, for thefpu zpose described. v y I 3. A discharge-trunk for pneumatic stack- 30 ers, comprising two telescoping tru nk-sections pivoted together at the top so as to be capable of angular lateral movement with respect to each other, one of the sections havingat each side an outwardly-curvedsegment and 5 the other section being telescoped overthe -'segments to the radii thereof perpendicular to the longitudinal axes of the trunk-sections, and means for swinging one of the sections.

4; A discharge-trunk for pneumatic stack- 9 otal connection, one of said sections having at each side a curved segment having its center at said point of pivotal connection, and the other section being telescoped over the segments to the radii thereof perpendicular to the longitudinal axes of said'trunk-sections,

and means for swinging one of the sections,

5. In a pneumatic stacker, in combination, a fan-casing having an outwardly-extendin throat, and a discharge-trunk leading from said throat and comprising an inner trunk- 5 sectionsuitably connected with the'throat and a swing-section, the inner section having at each side an outwardly-curved segment and the swing-section being telescoped over said segments, to the bisecting radii thereof perpendicular to the longitudinal axis of the inner section, said sections having pivotal con nection at approximately the common center of said segments, and means for swinging the swing-section.

6. In a pneumatic stacker, in combination, a fan-casing having a discharge-throat, a discharge-trunk having anv inner section connected with the throat-and a swing-section having swinging connection with the inner sec- 1 20 tion, a lever fulcrumed upon the inner section and secured at its acting end to the swing section, a toothed segment secured to the lever, and a worm carried by the inner section in position to intermesh with the toothed Seg- S 'ment to turn the lever iand the swing-section inner section, a lever, secured atone end to the swing-section and carrying at the other end a toothed segment, said lever being ful-' crumed upon the inner section,vand a worm supported by the inner section and intermeshing with the toothed segment to turn the lever, the toothed segmenthaving arms secured to the lever at a point between its fulcrum and its acting end, for the purposedescribed.v

8. In a pneumatic stacker, in combination, a fan-casing, a discharge-trunk having'an inner section leading from the fan-casing and a swingsection having swinging connection with the inner section, a lever fulcrumed upon the innersection and connected at one end with the swing-section, intermeshing gears upon the other end of the lever and upon "the inner section whereby the le'ver'is turned to swing the swing-section.

9. In a pneumatic stacker, in combination, 1 a fan-casing, a discharge-trunk having an 1nner section leading from the fan-easing and a swingsectlon havlng swinging connection with the inner section, a lever connected at one. end With the swing-section and'carrymg being-fulcrumedintermediately upon the inner section, and a worm carried by the inner section in position to mesh with the toothed segment to turn the lever.- I

In testimony whereof lafiix my signature in presence of two witnesses.

. OLE L. LARSON.

. Witnesses:

ARTHUR P. LOTHROP, EMI Y F. OTIS.

at the other end a toothed segment, the lever v 

